there's certainly an effort on the part of both president obama and his republican challenger, mitt romney, to have a serious second look at sanctions, to try to figure out what additional economic measures are necessary to bring iran's nuclear program to heel. i think that, to a large extempt, is going to determine whether there is military action against iran. quite simply, the sanctions we've applied so far are not having the requisite impact on iran, and more needs to be done. jenna: that was a very interesting editorial in the ine washington post" this week, you said just to review for our viewers, the sanctions are working in some ways, they're not working in others, and can they need to be enforced greater, in your opinion. let's talk about what the american people should expect or trust in this process. you know, why should the american people trust diplomacy when it comes to iran? has there been any evidence that sanctions or diplomacy in the past has worked with this regime and this country? >> well, those are two separate things, and it's clear that diplomacy, at least as attemp